this thread was amazing. years later im having this issue on my 1994 Vogue. Common denominator here is an alternator. I just installed a 12v 65A for my house batteries as the old one was dying. New 1 didnt have the same grounding bolt so i jerry rigged it. My inverter #2 shuts off as soon as AC power is removed. I will check tje ground as soon as bus comes back from Houston.
I loveeee the search feature of this forum...eliminates the need to start a new noob post
-Patrick